From 11ddce15451eb5e3cb2c951dc5c8d86a2802017a Mon Sep 17 00:00:00 2001
From: Christoph Hellwig <hch@lst.de>
Date: Wed, 13 Feb 2019 08:01:22 +0100
Subject: dma-mapping, powerpc: simplify the arch dma_set_mask override

Instead of letting the architecture supply all of dma_set_mask just
give it an additional hook selected by Kconfig.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Tested-by: Christian Zigotzky <chzigotzky@xenosoft.de>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
---
 arch/powerpc/kernel/dma-mask.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)
 create mode 100644 arch/powerpc/kernel/dma-mask.c

(limited to 'arch/powerpc/kernel/dma-mask.c')

diff --git a/arch/powerpc/kernel/dma-mask.c b/arch/powerpc/kernel/dma-mask.c
new file mode 100644
index 000000000000..ffbbbc432612
--- /dev/null
+++ b/arch/powerpc/kernel/dma-mask.c
@@ -0,0 +1,12 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/dma-mapping.h>
+#include <linux/export.h>
+#include <asm/machdep.h>
+
+void arch_dma_set_mask(struct device *dev, u64 dma_mask)
+{
+	if (ppc_md.dma_set_mask)
+		ppc_md.dma_set_mask(dev, dma_mask);
+}
+EXPORT_SYMBOL(arch_dma_set_mask);
-- 
cgit